Home / 3,723.84-5,139.72-2,232.72

Finding the Fourth Proportional to 3,723.84, 5,139.72 and 2,232.72

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Solution

The fourth proportional to 3,723.84, 5,139.72 and 2,232.72 is: 3,081.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,723.84 : 5,139.72 = 2,232.72 : x
  2. Step 2: Convert to fraction form
    3,723.84/5,139.72 = 2,232.72/x
  3. Step 3: Cross multiply
    3,723.84x = 5,139.72 × 2,232.72
  4. Step 4: Simplify right side
    3,723.84x = 11,475,555.64
  5. Step 5: Solve for x
    x = 11,475,555.64/3,723.84
  6. Step 6: Final answer
    x = 3,081.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.